Hi, i am interfacing ARM(STR71x series) to text to speech
conversion chip (SPI interfacing). I have a doubt regarding slave select
pin. Will that pin automatically become low when i write data to a arm
register? for selecting a slave device? Also configuration of clock
means edge & active high/ low this also Not getting? One more thing any
one have WTS701.C driver??
Plz help.

Supriya wrote:
>>> Hi, i am interfacing ARM(STR71x series) to text to speech> conversion chip (SPI interfacing). I have a doubt regarding slave select> pin. Will that pin automatically become low when i write data to a arm> register? for selecting a slave device? Also configuration of clock> means edge & active high/ low this also Not getting? One more thing any> one have WTS701.C driver??
As far as I understand the user-manual and some STmicro
application-notes for the STR71x SPI-Interface on STR71x the
SPI-interface's hardware chip-select should be kept high in master-mode
and the external device should be selected with an extra GPIO-pin. I
have only tested with the select for SPI slaves by GPIO on STR710 so
take this information for what it's worth.
Martin Thomas

Try to understand the (complete) code from where you have copied the
shown lines (AN1810). It may also help if you download the STR710
eval-board uses's manual which includes the schematics and see how the
connections are wired.

Hi,
I am new to ARM , so not getting how to generate !SS?
my h/w details r as follows:
slave.SI -> STR710.S1.MOSI
slave.SO -> STR710.S1.MISO
slave.SCK -> STR710.S1.SCLK
slave.!SS -> STR710.S1.!SS
So will it work? & i am genearating !ss signals by using 1ss of STR710
as general I/O & making it high low,(dont know is this correct?)
Plz help out?